TimKendall, Craig J.Whittington, ElizabethKuipers, SoniaJohnson, Max J.Birchwood, MaxMarshall, Anthony P.Morrison, on behalf of the NICE guideline development group for CG178 The British Journal of Psychiatry Apr 2016, 208 (4) 316-319;

DOI: 10.1192/bjp.bp.115.170324

"AbstractA
recent editorial claimed that the 2014 National Institute for Health
and Care Excellence (NICE) guideline on psychosis and schizophrenia,
unlike its equivalent 2013 Scottish Intercollegiate Guidelines Network
(SIGN) guideline, is biased towards psychosocial treatments and against
drug treatments. In this paper we underline that the NICE and SIGN
guidelines recommend similar interventions, but that the NICE guideline
has more rigorous methodology. Our analysis suggests that the authors of
the editorial appear to have succumbed to bias themselves."

How
contemporaneous guidelines interpret similar data is interesting but
not relevant here. Conflicts of interest are important and various. Two
clinically important recommendations in the National Institute for
Health and Care Excellence (NICE) guideline CG178 deserve re-visiting."